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Your search keyword '"Fazlishanov, I."' showing total 10 results
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10 results on '"Fazlishanov, I."'

1. Low temperature properties of the Electron Spin Resonance in YbRh2Si2

Author

Sichelschmidt, J., Kambe, T., Fazlishanov, I., Zakharov, D., von Nidda, H. -A. Krug, Wykhoff, J., Skvortsova, A., Belov, S., Kutuzov, A., Kochelaev, B. I., Pashchenko, V., Lang, M., Krellner, C., Geibel, C., and Steglich, F.

Subjects
Condensed Matter - Strongly Correlated Electrons
Abstract

We present the field and temperature behavior of the narrow Electron Spin Resonance (ESR) response in YbRh2Si2 well below the single ion Kondo temperature. The ESR g factor reflects a Kondo-like field and temperature evolution of the Yb3+ magnetism. Measurements towards low temperatures (>0.5K) have shown distinct crossover anomalies of the ESR parameters upon approaching the regime of a well defined heavy Fermi liquid. Comparison with the field dependence of specific heat and electrical resistivity reveal that the ESR parameters can be related to quasiparticle mass and cross section and, hence, contain inherent heavy electron properties., Comment: 4 pages, 6 figures; Manuscript for Proceedings of the International Conference on Quantum Criticality and Novel Phases (QCNP09, Dresden); subm. to pss(b)

Published
2009
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2. ESR of YbRh2Si2 and 174YbRh2Si2 : local and itinerant properties

Author

Wykhoff, J., Sichelschmidt, J., Lapertot, G., Knebel, G., Flouquet, J., Fazlishanov, I. I., von Nidda, H. -A. Krug, Krellner, C., Geibel, C., and Steglich, F.

Subjects
Condensed Matter - Strongly Correlated Electrons
Abstract

Below the Kondo temperature the heavy Fermion compound YbRh$_{2}$Si$_{2}$ shows a well defined Electron Spin Resonance (ESR) with local Yb$^{3+}$ properties. We report a detailed analysis of the ESR intensity which gives information on the number of ESR active centers relative to the ESR of well localized Yb$^{3+}$ in YPd$_3$:Yb. The ESR lineshape is investigated regarding contributions from itinerant centers. From the ESR of monoisotopic $^{174}$YbRh$_{2}$Si$_{2}$ we could exclude unresolved hyperfine contributions to the lineshape., Comment: 3 Figures

Published
2007
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4. Low temperature properties of the electron spin resonance in YbRh2 Si2

Author

Sichelschmidt, J., primary, Kambe, T., additional, Fazlishanov, I., additional, Zakharov, D., additional, Krug von Nidda, H.-A., additional, Wykhoff, J., additional, Skvortsova, A., additional, Belov, S., additional, Kutuzov, A., additional, Kochelaev, B.I., additional, Pashchenko, V., additional, Lang, M., additional, Krellner, C., additional, Geibel, C., additional, and Steglich, F., additional

Published
2010
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7. Low temperature properties of the electron spin resonance in YbRh2Si2

Author

Sichelschmidt J., Kambe T., Fazlishanov I., Zakharov D., Krug von Nidda H., Wykhoff J., Skvortsova A., Belov S., Kutuzov A., Kochelaev B., Pashchenko V., Lang M., Krellner C., Geibel C., Steglich F., Sichelschmidt J., Kambe T., Fazlishanov I., Zakharov D., Krug von Nidda H., Wykhoff J., Skvortsova A., Belov S., Kutuzov A., Kochelaev B., Pashchenko V., Lang M., Krellner C., Geibel C., and Steglich F.

Abstract

We present the field and temperature behavior of the narrow electron spin resonance (ESR) response in YbRh2Si2 well below the single ion Kondo temperature. The ESR g-factor reflects a Kondo-like field and temperature evolution of the Yb* magnetism. Measurements toward low temperatures (> 0.5 K) have shown distinct crossover anomalies of the ESR parameters upon approaching the regime of a well-defined heavy Fermi liquid. Comparison with the field dependence of specific heat and electrical resistivity reveal that the ESR parameters can be related to quasiparticle mass and cross section and, hence, contain inherent heavy electron properties. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

8. Low temperature properties of the electron spin resonance in YbRh2Si2

Author

Sichelschmidt J., Kambe T., Fazlishanov I., Zakharov D., Krug von Nidda H., Wykhoff J., Skvortsova A., Belov S., Kutuzov A., Kochelaev B., Pashchenko V., Lang M., Krellner C., Geibel C., Steglich F., Sichelschmidt J., Kambe T., Fazlishanov I., Zakharov D., Krug von Nidda H., Wykhoff J., Skvortsova A., Belov S., Kutuzov A., Kochelaev B., Pashchenko V., Lang M., Krellner C., Geibel C., and Steglich F.

Abstract

We present the field and temperature behavior of the narrow electron spin resonance (ESR) response in YbRh2Si2 well below the single ion Kondo temperature. The ESR g-factor reflects a Kondo-like field and temperature evolution of the Yb* magnetism. Measurements toward low temperatures (> 0.5 K) have shown distinct crossover anomalies of the ESR parameters upon approaching the regime of a well-defined heavy Fermi liquid. Comparison with the field dependence of specific heat and electrical resistivity reveal that the ESR parameters can be related to quasiparticle mass and cross section and, hence, contain inherent heavy electron properties. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

10. Electron spin resonance in YbRh2Si2: The role of the residual linewidth

Author

Wykhoff, J., Sichelschmidt, J., Ferstl, J., Krellner, C., Geibel, C., Steglich, F., Fazlishanov, I., and von Nidda, H.-A. Krug

Subjects
*ELECTRON paramagnetic resonance, *PARTICLES (Nuclear physics), *DILUTION, *TEMPERATURE
Abstract

Abstract: We present electron spin resonance (ESR) investigations of the La-doped heavy fermion metal YbRh2Si2 and of undoped samples which differ in their low-temperature charge transport properties. The dilution of Yb by non-magnetic La leaves the temperature dependence of ESR parameters qualitatively unchanged. A comparison with various undoped samples shows that the residual, zero temperature ESR linewidth is a key parameter for the spin dynamics seen by the ESR active entities in YbRh2Si2. [Copyright &y& Elsevier]

Published
2007
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